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arXiv · 1508.00057

Selective distillation phenomenon in two-species Bose-Einstein condensates in open boundary optical lattices

Xiao-Dong Bai·Mei Zhang·Jun Xiong·Guo-Jian Yang·Fu-Guo Deng
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Abstract

We investigate the formation of discrete breathers (DBs) and the dynamics of the mixture of two-species Bose-Einstein condensates (BECs) in open boundary optical lattices using the discrete nonlinear Schrödinger equations. The results show that the coupling of intra- and interspecies interaction can lead to the existence of pure single-species DBs and symbiotic DBs (i.e., two-species DBs). Furthermore, we find that there is a selective distillation phenomenon in the dynamics of the mixture of two-species BECs. One can selectively distil one species from the mixture of two-species BECs and can even control dominant species fraction by adjusting the intra- and interspecies interaction in optical lattices. Our selective distillation mechanism may find potential application in quantum information storage and quantum information processing based on multi-species atoms.

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Xiao-Dong Bai, Mei Zhang, Jun Xiong, Guo-Jian Yang, Fu-Guo Deng. 2016-02-01. Selective distillation phenomenon in two-species Bose-Einstein condensates in open boundary optical lattices. https://arxiv.org/abs/1508.00057

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